41results about How to "Reduce force requirements" patented technology

A mechanical thrombectomy device system is disclosed that is made from a single piece of biocompatible material, including a proximal flow block portion / feature, and / or, a flow block feature in the device body portion, a guidewire like delivery portion and an expandable, treatment portion. The construction of the device from a single piece allows for a seamless transition from the delivery portion to the treatment portion, thus removing any joints or bonding of the two portions together as separate pieces. This improves the strength of the system as a whole and greatly reduces the possibility of the two parts unintentionally detaching from each other. Likewise, the distal treatment portion is cut from a piece of material the same size as the proximal delivery portion, allowing the device to be compacted to a similar size profile giving it delivery advantages including a lower delivery force required and requiring small access systems, and the treatment portion's surface can be altered to enhance embolus affinity by either coating with a substance or changing the texture by mechanical or chemical means.

An electromagnetic operator includes first and second coils wound coaxially. An armature partially surrounds the coils for channeling flux during energization of the coils. The armature may be formed of a bent plate and secured to a ferromagnetic support. A control circuit applies energizing signals to the coils during operation. Both coils are energized during an initial phase of operation. One of the coils is subsequently released or de-energized automatically. A timing circuit removes current from the second coil after a variable time period. The time period may be a function of the configuration of the timing circuit, such as an RC time constant, and of the energizing signal.

The invention relates to a system and a method integrating road surface runoff collection, purification, storage and utilization for plants. A biological planting groove lower than a road surface is used for collecting and processing road surface runoff at an initial stage and formed by stacking a planting soil layer, an infiltration filtering layer, a supporting layer, a water storage layer, an impervious layer and the like from the top to the bottom. The road surface runoff at a later stage is collected in a level observing well separated in the groove through an overflowing groove on the side of the biological planting groove and can be discharged directly through a lateral wall water discharging pipe. The collected road surface runoff at the initial stage is calculated according to an area rainstorm intensity formula and collecting time, and on the basis of the calculated road surface runoff at the initial stage, filling material texture and thickness, soil infiltration capacity, a soil surface distance and an overflow distance are combined to distribute filling materials of the planting soil layer and the water storage layer. Storage water is extracted by an extraction device and utilized for road surface plants. The system and the method are applicable to collection, processing and comprehensive utilization of the road surface runoff which is at the initial stage and has a pollution effect and emergency management of a road environment under the condition of leakage of dangerous goods during transportation.

An electromagnetic operator includes first and second coils wound coaxially An armature partially surrounds the coils for channeling flux during energization of the coils. The armature may be formed of a bent plate and secured to a ferromagnetic support. A control circuit applies energizing signals to the coils during operation. Both coils are energized during an initial phase of operation. One of the coils is subsequently released or de-energized automatically. A timing circuit removes current from the second coil after a variable time period. The time period may be a function of the configuration of the timing circuit, such as an RC time constant, and of the energizing signal.

Balloon especially useful for dilatation of gastrointestinal lesions have a burst pressure of at least 9 atmospheres, a diameter at 3 atmospheres of about 5 mm or more, and an average compliance over the range of from 3 atmospheres to burst of at least 3% per atmosphere. Such balloons and balloons having other combinations of burst strength, compliance and diameter may be prepared by a method wherein a tubing of a thermoplastic polymer material is radially expanded under a first elevated pressure at an elevated temperature to form the balloon at a first diameter and then annealing the balloon at a second elevated temperature and a second pressure less than the first elevated pressure for a time sufficient to shrink the formed balloon to a second diameter less than the first diameter. The thermoplastic polymer material may be a block copolymer material. Catheters bearing balloons prepared by this method have low withdrawal force requirements, especially catheters used in through-the-scope applications.

An ejection device (11) for containers containing compounds has a receiving chamber (12) for the container, a piston rod (13) which is displaceable relative to the receiving chamber (12), and an ejection unit (16) having a housing (17), a forward feed element (18) which is pivotally supported in the housing (17) for advancing the piston rod (13), and a handle (19) with an actuation lever (21) which is pivotal around an axis of rotation (22) and which has an effort arm (25) with a hand grip and a load arm (24). Pressure transmission means (23) is provided at the end of the load arm (24) facing the forward feed element (18) and can be brought into contact with the forward feed element for actuating the forward feed element (18). The length (L1) of the load arm (24), which is determined by a distance from the pressure transmission means (23) to the axis of rotation (22) of the actuation lever (21), is adjustable by displacing a bearing pin (31) that forms the axis of rotation of the actuation lever, in a guide slot provided in the actuation lever (21).

An injection device defines a longitudinal center axis, a proximal direction and a distal direction. The injection device includes a housing having a receptacle for an injection fluid vessel and an operator-manipulated element configured to be rotatable to set an amount of injection fluid to be dispensed. The operator-manipulated element is further configured to move relative to the housing in the direction of the center axis in the distal direction when rotated. The operator-manipulated element further is displaceable in the proximal direction to dispense injection fluid. A feed part is connected to the operator-manipulated element in a rotatably fixed manner and is displaced in the direction of the center axis in the distal direction during the setting of the amount of injection fluid to be dispensed. The feed part is connected to the housing in a rotatably fixed manner and is displaced in the direction of the center axis in the distal direction when the injection fluid is dispensed. A blocking contour extends around the center axis in a spiral-like manner and coacts with the feed part and to block a movement of the feed part in the direction of the center axis in the proximal direction. The blocking contour has at least at one location an interruption configured to allow a movement of the feed part in the direction of the center axis in the proximal direction.

The invention discloses an embedded compound spinning frame. Two layers of unwinding brackets and four parallel unwinding rollers are arranged on an upright post of a creel; the unwinding rollers positioned on the same side of the unwinding brackets mutually drive and are connected by a vertical driving pair of the unwinding rollers; and at least one unwinding roller in the unwinding rollers on the same side of the unwinding brackets is in driving connection with a front roller of a drawing mechanism through an unwinding roller driving device. When in spinning, two rovings hung on the creel respectively enter a drawing area of the drawing mechanism in parallel through roving horn mouths for drawing; two unwound filaments roll from different unwinding rollers and respectively enter the rear side of a tong port of the front roller of the drawing mechanism through a filament guider; and the two filaments and two drawn rovings are combined on the rear side of the tong port of the same front roller, output and twisted from the front side of the tong port of the front roller and wound on a spinning tube of a spindle. The invention not only can conveniently spin short fibers and other low-grade raw materials, but also has the advantages of abundant yarn type structures, dry resultant slivers and superior filoplume indexes.

The invention discloses a fertilizer turning and throwing machine, which relates to the technical field of agricultural machinery manufacture. The fertilizer turning and throwing machine comprises a gate-type rack and a turning and throwing wheel installed on the gate-type rack by a rocker arm and a hinged shaft, wherein a lift cylinder is installed between the rocker arm and the gate-type rack. The fertilizer turning and throwing machine is characterized in that the hinged shaft is positioned in front of the turning and throwing wheel; the turning and throwing wheel is arranged on the rear part below the gate-type rack and is installed on the rear part of the inner side of the gate-type rack; the hinged position of the lift cylinder and the rocker arm is positioned behind the turning and throwing wheel; a driving motor is sheathed in one end of the turning and throwing wheel; the rear end of the gate-type rack is hinged with a material baffle plate; and an elevation cylinder used for regulating the rotating angle of the material baffle plate is arranged between the gate-type rack and the material baffle plate. Compared with the prior art, the fertilizer turning and throwing machine is characterized in that the turning and throwing wheel of the fertilizer turning and throwing machine is positioned behind the gate-type rack, which is beneficial to backwards turning and throwing the fertilizer, and the splashing distance of the fertilizer can be controlled by regulating the material baffle plate via the elevation cylinder.

The invention relates to an energy-saving vibration sieve, which comprises a sieve body, a support device and a vibration exciter, wherein the support device is used for supporting the sieve body, the vibration exciter is used for driving the sieve body to move relative to the support device, the sieve body is assembled on the support device along the horizontal direction in a guide moving way, the vibration exciter is provided with a vibration exciter output end used for outputting the horizontal displacement, an elastic device is arranged between the vibration exciter output end and the sieve body, in addition, the vibration exciter output end and the sieve body are in transmission connection through the elastic device, and the elastic device has the deformation direction consistent to the guide moving direction of the sieve body. During the work process, the vibration exciter moves in the horizontal direction, the sieve body and materials do not need to generate vertical movement through driving, and the working by overcoming the gravity is not needed. In addition, the elastic device realizes the buffer effect during the starting, the acting force requirements during the starting can be reduced, the energy can be stored in the operation, and the energy loss when the sieve body moves to the maximum stroke can be reduced, so the integral energy utilization rate is improved, and the energy consumption is reduced.

A mechanical thrombectomy device system is disclosed that is made from a single piece of biocompatible material, including a proximal flow block portion / feature, and / or, a flow block feature in the device body portion, a guidewire like delivery portion and an expandable, treatment portion. The construction of the device from a single piece allows for a seamless transition from the delivery portion to the treatment portion, thus removing any joints or bonding of the two portions together as separate pieces. This improves the strength of the system as a whole and greatly reduces the possibility of the two parts unintentionally detaching from each other. Likewise, the distal treatment portion is cut from a piece of material the same size as the proximal delivery portion, allowing the device to be compacted to a similar size profile giving it delivery advantages including a lower delivery force required and requiring small access systems, and the treatment portion's surface can be altered to enhance embolus affinity by either coating with a substance or changing the texture by mechanical or chemical means.

The invention discloses a novel ceramic sheet material and a production method thereof. The novel ceramic sheet material comprises two layers of relatively thin ceramic plates and foaming cement, wherein the ceramic plates are provided with sticky strips or sticky columns, and the foaming cement is poured between the two layers of ceramic plates. The novel decorative sheet material provided by the invention is light in weight, easy to clean, environmentally-friendly and low in cost; the width of the novel ceramic sheet material can be freely adjusted and produced according to the purpose and application parts of the ceramic sheet material; and the novel ceramic sheet material can be jointed, dry-hung or stuck under a wet condition and is widely applied.

A limb protector for protecting a limb of a wearer from contact with water or other contaminant has a tubular member made from ultrathin plastic film. The ultrathin film enables the material around the opening to form a watertight seal around the limb without forming a venous tourniquet.

The invention relates to a hollow guide rail for guiding the running direction of an elevator. The hollow guide rail comprises a hollow guide rail body formed by integrally bending / rolling, a lift carand a counterweight are installed on the hollow guide rail body, and a counterweight running guide groove and a lift car running guide face which correspond to and are matched with a counterweight guide shoe on the counterweight and a lift car guide shoe on the lift car respectively in position are formed on the hollow guide rail body. The lift car and the counterweight are guided at the same time through the hollow guide rail, the lift car moves up and down through the lift car guide shoe under the guide effect of the lift car running guide face, the counterweight moves up and down through the counterweight guide shoe under the guide effect of the counterweight running guide groove, and the movement direction of the lift car is opposite to the movement direction of the counterweight. According to the hollow guide rail for guiding the running direction of the elevator, the elevator area utilization rate is increased, the vertical mounting times of a lift car guide rail and a counterweight guide rail on site are reduced, the vibration problem of the lift car in the running period caused by inconsistent guiding perpendicularity is avoided, the complexity of mounting the lift car andthe counterweight guide rail on site is reduced, and the operation stability of the lift car is improved.

The invention discloses a bottom door of a compartment. The bottom door comprises a telescopic cylinder and at least two door bodies, wherein each door body is provided with a transmission mechanism which comprises a rotating shaft and a transmission rod, and the rotating shafts are connected with the door bodies through the transmission rods so that the door bodies can be driven to rotate when the rotating shafts rotate; the rotating shafts are driven by the telescopic cylinder to rotate, and the at least two rotating shafts can be driven by the telescopic cylinder successively to rotate. The rotating shafts can be driven by the telescopic cylinder successively to rotate so that the door bodies corresponding to the rotating shafts can be sequentially opened according to a certain order. It is only needed that the telescopic cylinder always provides acting force needed by opening one door body. Compared with the prior art, the acting force needed when the bottom door is opened is small, the requirement for the acting force of the telescopic cylinder is lowered, implementation is easy, the size of the telescopic cylinder is reduced, space is saved, and the dead load is reduced. Besides, the impacting force generated in the opening process is also reduced, and the reliability of the whole bottom door is improved. The invention further discloses the compartment with the bottom door.

The invention relates to a door lock or flap lock comprising a locking mechanism that consists of a latch (1) and at least one pawl (2) for locking the latch (1). The locking surface of the pawl is so narrow that even slight pivoting movements are sufficient to unlock a locked locking mechanism, thus allowing for a reduction in volume and weight.

A mechanical assembly for securing a first sheet to a second sheet includes a first projection having a first sidewall and a first top wall. The first sidewall extends from the first top wall at a first acute angle. The first sidewall includes a first top end and a first bottom end. A first discontinuity is defined in the first sidewall between the first top end and the first bottom end. A first base wall extends from the first bottom end. The first base wall extends generally parallel to the first top wall.

An electromagnetic operator includes first and second coils wound coaxially. An armature partially surrounds the coils for channeling flux during energization of the coils. The armature may be formed of a bent plate and secured to a ferromagnetic support. A control circuit applies energizing signals to the coils during operation. Both coils are energized during an initial phase of operation. One of the coils is subsequently released or de-energized automatically. A timing circuit removes current from the second coil after a variable time period. The time period may be a function of the configuration of the timing circuit, such as an RC time constant, and of the energizing signal.

The invention provides a four-corner steel pipe, corrugated side plate and flat side plate combined column. The four-corner steel pipe, corrugated side plate and flat side plate combined column comprises flat webs, cross-shaped stiffening ribs, corner steel pipes and corrugated side plates. The four or more than four corner steel pipes are uniformly arranged to form an edge constraint body; the corner steel pipes in the X direction of the combined column are connected in a welded mode through the corrugated side plates; the corner steel pipes in the Y direction of the combined column are connected in a welded mode through the flat webs; and a hollow columnar structure is defined by the flat webs, the corner steel pipes and the corrugated side plates, the cross-shaped stiffening ribs are arranged in the hollow portion of the columnar structure, and the ends of the cross-shaped stiffening ribs are connected with the corner steel pipes. Under the condition that the limitation of the maximum width-to-thickness ratio is met, the thickness of the webs of the steel pipes of the combined column can be reduced by nearly a half compared with that of a traditional box column; and under the condition of obtaining the same inertia moment, the steel consumption of cross sections is reduced by 20%-30%.

A steering column assembly for a vehicle, comprises a shroud comprising an axially movable upper portion and an axially fixed lower portion, which move telescopically to provide adjustment for reach of the steering column assembly, a steering shaft supported by the shroud, a pivot which connects a part of the lower portion to a fixed part of the vehicle, a clamp mechanism which releasably fixes the upper and lower portions and the shroud in position relative to a further fixed part of the vehicle. A sprung support assembly is secured to a fixed part of the vehicle and includes an axle that passes underneath the upper portion of the shroud and a cylindrical roller that surrounds a part of the axle and has an outer surface that engages the underside of the shroud and an inner surface that bears on the axle, the sprung support at least partially supports the weight of the shroud when the clamp mechanism is released, and the cylindrical roller rotating around the axle as the shroud is adjusted for reach.

The invention relates to the technical field of physical therapy medical equipment, and particularly relates to an upper and lower limb rehabilitation physical therapy device which comprises a physical therapy support, wherein the physical therapy support is composed of an upper support, a cross beam and side plates, the upper support is vertically welded to the upper end of the physical therapy support, the four parallel side plates are vertically arranged at the lower end of the physical therapy support, the upper ends of the side plates are fixedly welded to the lower end face of the physical therapy support, and a gap between a pair of parallel adjacent side plates is arranged to be a rotating inner cavity. The physical therapy device has the beneficial effects that linkage of movement of the upper limb and the lower limb is achieved by arranging a pull rope, bending and rising of the lower limbs are achieved by pulling the pull rope through the upper limbs, the linkage balance of the movement of the upper and lower limbs is realized, the rehabilitation effect on the upper and lower limbs is greatly improved, the vertical resetting of the human body is realized under the action of a buffer spring and the gravity of the human body, the requirement on the force application on the human body is greatly reduced, and the device is suitable for the rehabilitation of surgical hands with inconvenience in force application.

The invention discloses an intelligent numerical control machine tool clamping mechanism which comprises a liquid pool, a multi-axis posture adjusting arm, a multi-angle laser posture position measuring device and a controller. The liquid pool is filled with electrorheological fluid, and electrodes are oppositely arranged on the inner walls of the two sides of the liquid pool; an external circuit applies a strong electric field to the electrorheological fluid through the electrodes; the multi-axis posture adjusting arm grabs and fixes a workpiece from the bottom of the workpiece to be machined and adjusts the posture of the workpiece. According to the clamping mechanism, liquid-solid conversion is achieved through the characteristics of electrorheological fluid, so that the clamping mechanism is suitable for clamping different special-shaped workpieces, full-wrapping clamping is adopted, the clamping force is stable, and the special-shaped workpieces are not prone to being damaged; according to the clamping mechanism, the multi-axis posture adjusting arm is combined with the multiple sets of laser position detectors, the posture of the special-shaped workpiece is flexibly and accurately adjusted, posture adjustment and clamping can be rapidly and automatically achieved in combination with the characteristics of electrorheological fluid, and therefore the machining efficiency of the workpiece is improved.

The invention relates to the technical field of public facilities, in particular to an equipment installation connecting device applied to a multifunctional rod. The equipment installation connecting device comprises a basic supporting seat, at least one left supporting arm and at least one right supporting arm are arranged on the rear side of the basic supporting seat, the left supporting arm and the right supporting arm can relatively move in the left-right direction and are locked, an adjusting locking switch column which can drive at least one of the left supporting arm and the right supporting arm to move in the left-right direction and penetrate through the driven left supporting arm or the driven right supporting arm is installed on the rear side of the basic supporting base, and the adjusting locking switch column can rotate relative to the driven left supporting arm or the driven right supporting arm. The driven left supporting arm or the driven right supporting arm is provided with a driving hole channel allowing the adjusting locking switch column to penetrate through, an internal thread part is formed on the inner wall of the driving hole channel, and an external thread part which can be matched with the internal thread part and can move left and right on the internal thread part is formed on the peripheral surface of the adjusting locking switch column. The mounting strength and precision are better.

The invention relates to an evacuation fireproof door suitable for disabled people and a using method thereof.The evacuation fireproof door comprises a door frame and a door leaf, the door leaf is embedded in the door frame in a hinged mode to form an openable and closable structure, and the evacuation fireproof door further comprises a door closer; the door closer comprises a main shell, a reset spring, a piston, a gear shaft, a flow promoting mechanism and a pressure promoting mechanism. By controlling opening and closing actions of a one-way electromagnetic valve of a flow promoting mechanism and an electromagnet of a pressure promoting mechanism in the door closer, on the basis of ensuring automatic closing of the fireproof door, circulation resistance of hydraulic oil can be safely and stably relieved, compression of a reset spring is accelerated, and therefore acting force needed by a user to open the door is relieved, and the safety of the fireproof door is improved. By means of the fireproof door, the door leaf can be conveniently and rapidly opened by people with small strength such as children, old people or patients, and therefore on the basis that the fireproof effect is not affected, the people with small strength can effectively and conveniently open and pass through the fireproof door.

An implant for treating obstructive sleep apnea includes a first chamber containing an incompressible fluid, a second chamber containing a compressible fluid, and a flexible diaphragm separating the first and second chambers. The incompressible fluid is in communication with the compressible fluid via the flexible diaphragm. The first chamber has a first volume that remains constant in response to an external force applied upon the implant and the second chamber has a second volume that is changeable when the external force is applied upon the implant. The flexible diaphragm is extendible into the second chamber for reducing the second volume of the second chamber and compressing the compressible fluid within the second chamber. The compressible fluid within the second chamber provides less resistance to flexing during initial flexing of the implant and more resistance to flexing during further flexing of the implant.

The invention provides an unveiling seat frame tooling for a vessel delivery ceremony. The unveiling seat frame tooling comprises a fixed frame, a movable mechanism and a weight suspended at the top of the fixed frame, wherein the movable mechanism comprises a lever structure, a pull rod used for controlling unveiling of a vessel name curtain as well as at least one casing pipe, the casing pipe isfixedly connected to the inner wall of the fixed frame, a first end part of the pull rod penetrates into the casing pipe and is used for being connected with the vessel name curtain, the pull rod canbe drawn out of the casing pipe, the lever structure is mounted at the bottom inside the fixed frame, a clump weight is arranged at a first end part of the lever structure, and a second end part of the lever structure is connected with the pull rod and arranged oppositely to the weight. The tooling is quite simple in structure, fixing strength of the vessel name curtain can be guaranteed, connecting ropes are prevented from being broken by blowing and can also be cut off once conveniently, the effect of cutting the ropes for revealing is ensured, and working efficiency and working safety areimproved.

The invention relates to a gas injector for injecting gas, in particular directly into a combustion chamber of an internal combustion engine. The gas injector comprises: an electromagnetic actuator (2) having an armature (20), an inner pole (21) and a coil (22); at least two outwardly open valve needles (31, 32, 33), each of which releases and closes a flow opening of the gas path on the valve seat (90); a reset device (10), which is provided for resetting the valve needle (31, 32, 33) into its initial position.

The invention discloses an elevator driving device. The elevator driving device comprises a base, a stator, a rotor, a rotary frame, a main shaft, a driving rope pulley, a braking device, a braking disc and a braking main shaft, wherein the base is provided with a stator mounting part of the stator, a braking device mounting part of the braking device and a cavity in which the braking device, the braking disc and the braking device mounting part are accommodated; the rotary frame is provided with a rotor mounting part of the rotor and a driving rope pulley mounting part of the driving rope pulley; the stator is arranged opposite to the rotor in the axial direction; the stator and the driving rope pulley are arranged on the two sides of the rotor respectively; and the braking main shaft is fixedly connected with the main shaft. The elevator driving device has the advantages of simple structure, miniaturization, low cost, low noise and the like.